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What happens when BF3 is treated with am...

What happens when `BF_3` is treated with ammonia ?

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`BF_3` is treated with `NH_3` an addition compound `BF_3 .NH_3` is formed. `BF_3` accepts an electron pair from `NH_3` and forms a dative bond.
`BF_3 + overset("x x")(N)H_3 to [BF_3 larr NH_3] to [BF_3 . NH_3]`
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-THE P-BLOCK ELEMENTS GROUP-13-Short Answer Questions
  1. What happens when Boric acid is added to water ?

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  2. What happens when Aluminium is heated with dilute NaOH ?

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  3. What happens when BF3 is treated with ammonia ?

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  4. What happens when Hydrated alumina is treated with aq.NaOH solution ?

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  5. Give reasons Conc. HNO3 can be transported in aluminium container.

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  6. Give reasons A mixture of dil. NaOH and aluminium pieces in used to...

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  7. Give reasons Aluminium alloys are used to make aircraft body

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  8. Give reasons Aluminium utensils should not be kept in water overnigh...

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  9. Give reasons Aluminium wire is used to make transmission cables .

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  10. Explain why the electronegativity of Ga, In and Tl will not vary very ...

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  11. Explain borax bead test with a suitable example

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  12. Explain the structure of diborane.

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  13. Explain the reactions of aluminium with acids.

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  14. Write a short note on the anomalous behaviour of boron in the group - ...

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  15. Aluminium reacts with dil. HNO3 but not with conc. HNO3-explain.

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  16. Give two methods of preparation of diborane.

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  17. How does diborane react with H2O ?

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  18. How does diborane react with CO ?

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  19. How does diborane react with N(CH3)3 ?

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  20. Al2O3 is amphoteric -explain with suitable reactions.

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